(1969). Professional Perspective Drawing For Architects And Engineers/friedrich W.capelle. McGraw-Hill.
शिकागो शैली (17वां संस्करण) प्रशस्ति पत्रProfessional Perspective Drawing For Architects And Engineers/friedrich W.capelle. McGraw-Hill, 1969.
एमएलए (8वां संस्करण) प्रशस्ति पत्रProfessional Perspective Drawing For Architects And Engineers/friedrich W.capelle. McGraw-Hill, 1969.
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